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Finding the Third Proportional to 4,040 and 9,281

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Solution

The third proportional to 4,040 and 9,281 is: 21,321.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,040 : 9,281 = 9,281 : x
  2. Step 2: Convert to fraction form
    4,040/9,281 = 9,281/x
  3. Step 3: Cross multiply
    4,040x = 9,281 × 9,281
  4. Step 4: Simplify right side
    4,040x = 86,136,961
  5. Step 5: Solve for x
    x = 86,136,961/4,040
  6. Step 6: Final answer
    x = 21,321.03

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.